Water mist fire protection systems and methods for the protection of data centers having a raised floor defining an interstitial space beneath the floor. The systems and methods include the location of a plurality of automatic water mist nozzles above and/or beneath the floor to generate a water mist for effectively addressing a fire in the presence of a flow of forced air ventilation through the interstitial space. The systems and methods of water mist fire protection include the interconnection of the automatic water mist nozzles to a water supply to provide for dry pipe or preaction systems and methods. Water mist fire protection of data centers using fire propagating cable is also provided.

An appliance hub for use in an upper portion of an enclosure can include a substrate configured to be positioned in an upper portion of an enclosure. The appliance hub can include a climate control apparatus mounted on the substrate and the climate control apparatus can be configured to regulate a temperature within the enclosure. The appliance hub can include one or more lighting elements configured to provide light within the enclosure, a plurality of fluid lines connected to the substrate and configured to provide fluid service and return to the climate control apparatus, and/or a plurality of electrical connections connected to the substrate and configured to provide electrical power and/or data to at least one of the climate control apparatus and the one or more lighting elements.

A ceiling ventilation hood and fire protection system includes a ceiling ventilation hood, the ceiling ventilation hood defining an upper plane and a lower plane with a filter disposed between the upper and lower planes, and at least two nozzles each having an outlet defining a discharge axis with the outlet disposed in the ceiling ventilation hood between the upper and lower planes to provide overlapping protection of a hazard zone. Each of the nozzles define a spray pattern to effectively address a fire within the hazard zone independent of airflow through the filter. The outlets of the at least two nozzles are positioned at least 54 inches above the hazard zone.

A fire extinguishing device for automatically fighting fires, having a housing, which includes at least one fastening means for fastening the device on a wall or ceiling, in particular of a building, having an extinguishing agent container, arranged in the housing, having a fluid extinguishing agent in particular, having at least one spray nozzle for discharging the extinguishing agent from the extinguishing agent container, having at least one sensor designed to detect a fire and its position in the surroundings of the device, and having at least one control device designed to discharge the extinguishing agent from the extinguishing agent container through the at least one spray nozzle in the direction of the detected fire.

Fire protection systems and methods of fire protection systems for protection of a stored commodity. The systems and methods included a plurality of fluid distribution devices disposed above the stored commodity and configured for selective identification and controlled actuation in response to a fire. The systems have a hydraulic demand defined by at least one of: i) a hydraulic design area having a minimum operational area of less than 768 square feet; or ii) less than twelve hydraulic design devices.

A fire detection and suppression system includes a wireless mesh network and a controller. The wireless mesh network includes of a plurality of wireless mesh nodes distributed throughout the building. The wireless mesh nodes transmit and receive wireless signals during a baseline time period and record a baseline set of signal characteristics and transmit and receive the wireless signals during a second time period after the baseline time period and record a second set of signal characteristics. The controller is configured to determine that the second set of signal characteristics are abnormal relative to the baseline set of signal characteristics as a result of a fire within the building degrading the wireless signals during the second time period. A fire is detected by the controller based on these signals and corrective action is initiated in response to detecting the fire within the building.

An improved mist generating apparatus is provided, the apparatus having a longitudinal axis (L), and first and second opposing nozzle surfaces (100,102) which define a nozzle between them. A first process fluid passage (28) has an inlet connectable to a supply of process fluid, and a process fluid outlet (110) on one or the first and second nozzle surfaces (100,102) such that the process fluid outlet (110) opens into the nozzle. The nozzle has a nozzle inlet (104) connectable to a supply of driving fluid, a nozzle outlet (108), and a throat portion (106) intermediate the nozzle inlet (104) and nozzle outlet (108). The nozzle throat (106) has a cross sectional area which is less than that of both the nozzle inlet (104) and the nozzle outlet (108). The nozzle extends radially away from the longitudinal axis (L) such that the nozzle defines a rotational angle about the longitudinal axis (L). A centre line (CL) of the nozzle extends from the nozzle throat (106) to the nozzle outlet (108) at an angle of between 50 and 80 degrees relative to the longitudinal axis (L).

Preferred systems and methods for ceiling ventilation hood fire protection are provided in which fire protection nozzles are installed within a ventilation hood (12) to address a fire in a hazard zone (HAZ) below the ventilation hood. The fire protection nozzles (20) are disposed proximate the ventilation filters (18) or ports within the ceiling ventilation hood to provide overlapping protection of the hazard zone independent of airflow through the hood.

An integrated fire suppression system receives inert gas from onboard gas generators and water effluent from onboard water generators. The inert gas and water effluent are mixed in a gas-water mixer to generate an inert aerosol. The inert aerosol is provided to a fire suppressant distribution network and sprayed into areas of the aircraft requiring fire suppression to provide cooling and to prevent reignition.

Water mist fire protection systems and methods for the protection of data centers having a raised floor defining an interstitial space beneath the floor. The systems and methods include the location of a plurality of automatic water mist nozzles above and/or beneath the floor to generate a water mist for effectively addressing a fire in the presence of a flow of forced air ventilation through the interstitial space. The systems and methods of water mist fire protection include the interconnection of the automatic water mist nozzles to a water supply to provide for dry pipe or preaction systems and methods. Water mist fire protection of data centers using fire propagating cable is also provided.